CN109830770A - Vast capacity energy storage lithium ion battery with monitoring function - Google Patents
Vast capacity energy storage lithium ion battery with monitoring function Download PDFInfo
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- CN109830770A CN109830770A CN201910120637.7A CN201910120637A CN109830770A CN 109830770 A CN109830770 A CN 109830770A CN 201910120637 A CN201910120637 A CN 201910120637A CN 109830770 A CN109830770 A CN 109830770A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
本发明公开了具有监控功能的超大容量储能锂离子电池，包括多个正极板、多个负极板、隔膜套、正极汇流排、负极汇流排、正极极柱、负极极柱、监控模块；所述正极极柱下端与正极汇流排连接，所述正极极柱的上端伸出壳体外侧；所述负极极柱的下端与负极汇流排连接，所述负极极柱的上端伸出壳体外侧；隔膜套对负极板或/和正极板进行包裹连接，所述多个正极板与多个负极板相间排列；所述正极板的顶部均与正极汇流排连接，所述负极板的顶部均与负极汇流排连接；所述监控模块设置在正极板、负极板顶部，所述监控模块通过监控模块引线伸出壳体外侧。所述壳体腔体内填充锂离子电解液；所述壳体内无气体。本发明单体容量大，生产制造成本低，安全性高。
The invention discloses a super-capacity energy storage lithium ion battery with monitoring function, comprising a plurality of positive plates, a plurality of negative plates, a diaphragm sleeve, a positive bus bar, a negative bus bar, a positive pole, a negative pole, and a monitoring module; The lower end of the positive pole is connected to the positive bus bar, and the upper end of the positive pole extends out of the casing; the lower end of the negative pole is connected to the negative bus, and the upper end of the negative pole extends out of the casing; The diaphragm sleeve wraps and connects the negative electrode plate or/and the positive electrode plate, and the plurality of positive electrode plates are arranged alternately with the plurality of negative electrode plates; the tops of the positive electrode plates are all connected to the positive electrode bus bars, and the tops of the negative electrode plates are all connected to the negative electrode plates. The bus bar is connected; the monitoring module is arranged on the top of the positive plate and the negative plate, and the monitoring module extends out of the casing through the lead wire of the monitoring module. Lithium ion electrolyte is filled in the shell cavity; there is no gas in the shell. The invention has large monomer capacity, low production cost and high safety.
Description
Technical field
The present invention relates to technical field of lithium ion, in particular to the vast capacity energy storage lithium ion of monitoring function
Battery.
Background technique
Energy density is high, output voltage is high, self-discharge rate is low, long service life, memoryless effect because having for lithium ion battery
It should be widely used in the fields such as large-scale energy-storage battery with environmental-friendly equal excellent characteristics.Electricity used in existing energy-storage battery
Core is mainly stacked or takeup type design, is made of components such as anode, diaphragm, cathode, collector, electrolyte, shells, and just
It is almost the same to take lithium ion battery structure used in formula 3C equipment.
Lithium ion battery takeup type, laminate design have many advantages, such as good rate capability, and energy density is high, are suitable for medium and small
The consuming device of type, still, since its heat dissipation design, current collector sizes shape and manufacturing process limit, there are monomer capacity numbers
Magnitude is small, and the high capacity cell of the structure is at high cost, the technical problems such as conformity of production difference.Therefore the lithium in the prior art from
Sub- battery, monomer capacity general control 40Ah is hereinafter, not more than 260Ah.And energy storage technology is it is desirable that MW class, even
It is that the battery of tens of MW class carries out the transferring storage of energy, capacity is huge, therefore needs quantity size huge based on the prior art
Big small battery core is combined in series and parallel, and is uniformly managed, this has undoubtedly aggravated energy-accumulating power station battery management system significantly
Complexity, improve energy-accumulating power station production cost and potential security risk.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of monomer capacity is big, manufacturing cost is low, highly-safe
Vast capacity energy storage lithium ion battery with monitoring function.
In order to solve the above-mentioned technical problem, the technical solution of the present invention is as follows:
Vast capacity energy storage lithium ion battery with monitoring function, including multiple positive plates, multiple negative plates, diaphragm
Set, positive bus, negative bus-bar, Positive Poles, negative pole, monitoring module；
The Positive Poles lower end is connect with positive bus, and the upper end of the Positive Poles, which extends, stretches out the outer of shell
Side；The lower end of the negative pole is connect with negative bus-bar, and the upper end of the negative pole extends the outside for stretching out shell；
The diaphragm case carries out package connection to negative plate, and the multiple positive plate and multiple negative plates are spaced；Institute
The top for stating positive plate is connect with positive bus, and the top of the negative plate is connect with negative bus-bar；
The monitoring module is arranged at the top of positive plate, negative plate, and the monitoring module is stretched out by monitoring module lead
Hull outside, the monitoring module are used to measure temperature, the lithium concentration, reference potential of battery；
Lithium-ion electrolyte is filled in the shell cavity；Without gas in the shell.
Preferably, the monitoring module has been internally integrated reference electrode, thermocouple, lithium ion probe；
The reference electrode is used to measure the reference potential of battery；The thermocouple is used to detect the inside of lithium ion battery
Temperature；The concentration that the lithium ion is popped one's head in for measuring lithium ion.
Preferably, the lithium-ion electrolyte is that lithium hexafluoro phosphate or biethyl diacid lithium borate are dissolved in organic solvent shape
At；
The solvent be dimethyl carbonate, diethyl carbonate, ethylene carbonate, any item of propene carbonate or its
In several mixed solvents.
Preferably, the positive plate is identical as anode plate, and the positive plate or negative plate include grid, active matter
Matter layer；The active material layer includes fibrous material, active material, electrically conducting adhesive；The two sides of the grid are separately connected work
Property material layer.
Preferably, the grid includes the rib of internal reticular structure, the tab connecting with rib.
Preferably, the material of the grid of the positive plate is metallic aluminium；The active material of the positive plate is LiFePO4；
The fibrous material of the positive plate is the nano metal aluminium wire that length is greater than 10cm.
Preferably, the grid material of the negative plate is metallic copper or copper alloy；The active material of the negative plate is day
Right graphite material；The fibrous material of the negative plate is the nano metal copper wire that length is greater than 10cm.
By adopting the above technical scheme, due to having used multiple positive plates, multiple negative plates, diaphragm case, positive bus, having born
The technical characteristics such as pole busbar connector, Positive Poles, negative pole, monitoring module.So that the present invention is by designing spaced formula
Positive plate, negative plate；And confluence connection is realized by positive cylinder manifold, cathode cylinder manifold, battery cell capacity is effectively increased,
Reduce manufacturing cost.Meanwhile being realized by monitoring module to battery operation realtime monitoring, effectively increase battery
The safety used, and use service performance.
Detailed description of the invention
Fig. 1 is stereoscopic schematic diagram of the present invention；
Fig. 2 is positive plate of the present invention or negative plate perspective view of the explosion；
Figure label explanation:
1, positive plate；2, negative plate；3, diaphragm case；4, positive bus；5, negative bus-bar；6, Positive Poles；7, it bears
Pole pole；8, shell；9, liquid injection port；10, safety valve；11, monitoring module lead；12, monitoring module；A1, grid；A2, rib；
A3, tab；A4, active material layer.
Specific embodiment
Specific embodiments of the present invention will be further explained with reference to the accompanying drawing.It should be noted that for
The explanation of these embodiments is used to help understand the present invention, but and does not constitute a limitation of the invention.In addition, disclosed below
The each embodiment of the present invention involved in technical characteristic can be combined with each other as long as they do not conflict with each other.
As shown in Fig. 1, with the vast capacity energy storage lithium ion battery of monitoring function, including it is multiple positive plates 1, multiple
Negative plate 2, diaphragm case 3, positive bus 4, negative bus-bar 5, Positive Poles 6, negative pole 7, monitoring module 12.It will be positive
6 lower end of pole is connect with positive bus 4, the upper end of Positive Poles 6 is extended to the outside for stretching out shell 8, by negative pole 7
Lower end is connect with negative bus-bar 5, and the upper end of negative pole 7 is extended to the outside for stretching out shell 8.
Diaphragm case 3 is subjected to package connection to negative plate 3, and multiple positive plates 1 and multiple negative plates 2 are spaced；
The top of positive plate 1 is connect with positive bus 4, the top of negative plate 2 is connect with negative bus-bar 5.It will monitoring
The setting of module 12 stretches out hull outside, monitoring by monitoring module lead 11 in positive plate 1,2 top of negative plate, monitoring module 12
Module 12 is used to measure temperature, the lithium concentration, reference potential of battery；Lithium-ion electrolyte is filled in the shell cavity；
Without gas in the shell.
Above-mentioned technical proposal, by the way that multiple positive plates 1 and multiple negative plates 2 are spaced, so that the present invention effectively mentions
High cell capacity, reduces the manufacturing cost of single battery；And be arranged monitoring battery temperature, lithium concentration,
The monitoring module 12 of reference potential carries out the temperature of battery, lithium concentration, reference potential to realizing in battery use process
Real time monitoring, effectively increases the safety that battery uses, and improve battery service performance.In specific implementation on shell 8
Liquid injection port 9 and safety valve 10 is respectively set, lithium-ion electrolyte is injected into shell 8 by liquid injection port 9, and arrange by safety valve
Air in empty capsid 8, effectively improves battery.Simultaneously during the manufacturing, to all 8 outsides of extraction shell
Part be sealed processing.
In more detail, monitoring module 12 has been internally integrated reference electrode, thermocouple, lithium ion probe；Reference electrode is used
In the reference potential of measurement battery；Thermocouple is used to detect the internal temperature of lithium ion battery；Lithium ion is popped one's head in for measuring lithium
The concentration of ion.
Lithium-ion electrolyte is dissolved in organic solvent shape using lithium hexafluoro phosphate or biethyl diacid lithium borate in specific implementation
At；Solvent is dimethyl carbonate, diethyl carbonate, ethylene carbonate, any item of propene carbonate or in which several
Mixed solvent.The present invention dissolves to form electrolyte using lithium hexafluoro phosphate and dimethyl carbonate, diethyl carbonate mixed solution.
As shown in Fig. 2, positive plate 1 is identical as 2 structure of negative plate, and positive plate 1 or negative plate 2 include grid A1, living
Property material layer A4；Active material layer A4 includes fibrous material, active material, electrically conducting adhesive；And distinguish in the two sides of grid A1
Connect active material layer A4.Grid A1 includes the rib A2 of internal reticular structure, the tab A3 connecting with rib A2.
In specific implementation, the material of the grid A1 of positive plate 1 uses metallic aluminium；The grid A1 material of negative plate 1 is using gold
Belong to copper or copper alloy.
Grid A1 frame be it is rectangular, positive plate 1 having a size of 3000mm × 2000mm, negative plate 2 having a size of 2900mm ×
The reticular structure that rib A2 inside 1900mm, grid A1 is 15mm × 15mm, rib A2 set with a thickness of 4mm, the top grid A1
There is Double-pole lug A3, tab A3 is identical as grid A1 material, is integrally formed.
The active material of positive plate 1 uses LiFePO4；The active material of negative plate 1 uses natural graphite material.It is conductive
Binder is using the polyvinylpyrrolidone for being mixed with Ketjen black；The fibrous material of positive plate 1 receiving greater than 10cm using length
Rice metal aluminum filament.The fibrous material of negative plate 2 is greater than the nano metal copper wire of 10cm using length.Active material in specific implementation
Granular materials of the radius less than 30 μm leads to after mixing active material, fibrous material, conductive adhesive in coating to grid A1
It crosses pressing, drying, solidify positive plate 1 or negative plate 2 that production process forms porous spongy, with a thickness of 10mm.
In conjunction with attached drawing, the embodiments of the present invention are described in detail above, but the present invention is not limited to described implementations
Mode.For a person skilled in the art, in the case where not departing from the principle of the invention and spirit, to these embodiments
A variety of change, modification, replacement and modification are carried out, are still fallen in protection scope of the present invention.
Claims (7)
1. the vast capacity energy storage lithium ion battery with monitoring function, which is characterized in that including multiple positive plates, multiple cathode
Plate, diaphragm case, positive bus, negative bus-bar, Positive Poles, negative pole, monitoring module；
The Positive Poles lower end is connect with positive bus, and the upper end of the Positive Poles extends the outside for stretching out shell；Institute
The lower end for stating negative pole is connect with negative bus-bar, and the upper end of the negative pole extends the outside for stretching out shell；
The diaphragm case carries out package connection to negative plate or/and positive plate, and the multiple positive plate is alternate with multiple negative plates
Arrangement；The top of the positive plate is connect with positive bus, and the top of the negative plate is connect with negative bus-bar；
The monitoring module is arranged at the top of positive plate, negative plate, and the monitoring module stretches out shell by monitoring module lead
Outside, the monitoring module are used to measure temperature, the lithium concentration, reference potential of battery；
Lithium-ion electrolyte is filled in the shell cavity；Without gas in the shell.
2. the vast capacity energy storage lithium ion battery according to claim 1 with monitoring function, which is characterized in that described
Monitoring module has been internally integrated reference electrode, thermocouple, lithium ion probe；
The reference electrode is used to measure the reference potential of battery；The thermocouple is used to detect the inside temperature of lithium ion battery
Degree；The concentration that the lithium ion is popped one's head in for measuring lithium ion.
3. the vast capacity energy storage lithium ion battery according to claim 1 with monitoring function, which is characterized in that described
Lithium-ion electrolyte is that lithium hexafluoro phosphate or biethyl diacid lithium borate are dissolved in organic solvent and are formed；
The solvent is dimethyl carbonate, diethyl carbonate, ethylene carbonate, any item of propene carbonate or in which several
The mixed solvent of item.
4. the vast capacity energy storage lithium ion battery according to claim 1 with monitoring function, which is characterized in that described
Positive plate is identical as anode plate, and the positive plate or negative plate include grid, active material layer；The active material layer
Including fibrous material, active material, electrically conducting adhesive；The two sides of the grid are separately connected active material layer.
5. the vast capacity energy storage lithium ion battery according to claim 4 with monitoring function, which is characterized in that described
Grid includes the rib of internal reticular structure, the tab connecting with rib.
6. the vast capacity energy storage lithium ion battery according to claim 5 with monitoring function, which is characterized in that described
The material of the grid of positive plate is metallic aluminium；The active material of the positive plate is LiFePO4；The undulation degree of the positive plate
Material is the nano metal aluminium wire that length is greater than 10cm.
7. the vast capacity energy storage lithium ion battery according to claim 6 with monitoring function, which is characterized in that described
The grid material of negative plate is metallic copper or copper alloy；The active material of the negative plate is natural graphite material；The cathode
The fibrous material of plate is the nano metal copper wire that length is greater than 10cm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910120637.7A CN109830770A (en) | 2019-02-18 | 2019-02-18 | Vast capacity energy storage lithium ion battery with monitoring function |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910120637.7A CN109830770A (en) | 2019-02-18 | 2019-02-18 | Vast capacity energy storage lithium ion battery with monitoring function |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110429232A (en) * | 2019-08-14 | 2019-11-08 | 中南大学 | A kind of vast capacity lithium ion battery partition and lithium ion battery |
| CN112687830A (en) * | 2020-12-14 | 2021-04-20 | 双登集团股份有限公司 | Method for manufacturing lithium ion battery pole plate |
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| EP0944126A1 (en) * | 1998-03-18 | 1999-09-22 | Hitachi, Ltd. | Lithium secondary battery, its electrolyte, and electric apparatus using the same |
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| CN112687830A (en) * | 2020-12-14 | 2021-04-20 | 双登集团股份有限公司 | Method for manufacturing lithium ion battery pole plate |
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